#!/usr/bin/env bash
# Builds a Ruby file with Spinel into a static linux-arm64 binary, using a
# Spinel compiler built natively inside the emulated arm64 root.
#   scripts/smoke-spinel.sh <main.rb> <output>
set -euo pipefail
here=$(cd "$(dirname "$0")" && pwd)
TC=${BAKEOFF_TOOLCHAINS:-$HOME/.local/share/bakeoff-toolchains}
sp="$TC/spinel-arm64"
if ! [ -x "$sp/bin/spinel" ]; then
  rm -rf "$sp" && cp -r "$TC/spinel-src/spinel" "$sp"
  (cd "$sp" && git clean -fdxq -e vendor/ && "$here/arm64.sh" make -j8 >/dev/null)
fi
src=$(cd "$(dirname "$1")" && pwd)/$(basename "$1")
out=$(cd "$(dirname "$2")" && pwd)/$(basename "$2")
work=$(mktemp -d -p "${TMPDIR:-$HOME/.cache}")
trap 'rm -rf "$work"' EXIT
cp "$src" "$work/main.rb"
(cd "$work" && "$here/arm64.sh" "$sp/bin/spinel" main.rb -o app --cc="cc -static")
cp "$work/app" "$out"